#ifndef cJSON__h
#define cJSON__h

/* cJSON Types: */
#define cJSON_False 0
#define cJSON_True 1
#define cJSON_NULL 2
#define cJSON_Number 3
#define cJSON_String 4
#define cJSON_Array 5
#define cJSON_Object 6

#define cJSON_IsReference 256
#define cJSON_StringIsConst 512

/* The cJSON structure: */
typedef struct cJSON{
 struct cJSON*next;
 struct cJSON*prev;
 struct cJSON*child;
 
 int type;
 
 char*valuestring;
 int valueint;
 double valuedouble;
 
 char*string;
}cJSON;

typedef struct cJSON_Hooks{
 void*(*malloc_fn)(size_t sz);
 void(*free_fn)(void*ptr);
}cJSON_Hooks;

/* Supply malloc, realloc and free functions to cJSON */
extern void cJSON_InitHooks(cJSON_Hooks*hooks);


/* Supply a block of JSON, and this returns a cJSON object you can interrogate. Call cJSON_Delete when finished. */
extern cJSON*cJSON_Parse(const char*value);
/* Render a cJSON entity to text for transfer/storage. Free the char* when finished. */
extern char*cJSON_Print(cJSON*item);
/* Render a cJSON entity to text for transfer/storage without any formatting. Free the char* when finished. */
extern char*cJSON_PrintUnformatted(cJSON*item);
/* Render a cJSON entity to text using a buffered strategy. prebuffer is a guess at the final size. guessing well reduces reallocation. fmt=0 gives unformatted, =1 gives formatted */
extern char*cJSON_PrintBuffered(cJSON*item,int prebuffer,int fmt);
/* Delete a cJSON entity and all subentities. */
extern void cJSON_Delete(cJSON*c);

/* Returns the number of items in an array (or object). */
extern int cJSON_GetArraySize(cJSON*array);
/* Retrieve item number "item" from array "array". Returns NULL if unsuccessful. */
extern cJSON*cJSON_GetArrayItem(cJSON*array,int item);
/* Get item "string" from object. Case insensitive. */
extern cJSON*cJSON_GetObjectItem(cJSON*object,const char*string);

/* For analysing failed parses. This returns a pointer to the parse error. You'll probably need to look a few chars back to make sense of it. Defined when cJSON_Parse() returns 0. 0 when cJSON_Parse() succeeds. */
extern const char*cJSON_GetErrorPtr(void);

/* These calls create a cJSON item of the appropriate type. */
extern cJSON*cJSON_CreateNull(void);
extern cJSON*cJSON_CreateTrue(void);
extern cJSON*cJSON_CreateFalse(void);
extern cJSON*cJSON_CreateBool(int b);
extern cJSON*cJSON_CreateNumber(double num);
extern cJSON*cJSON_CreateString(const char*string);
extern cJSON*cJSON_CreateArray(void);
extern cJSON*cJSON_CreateObject(void);

/* These utilities create an Array of count items. */
extern cJSON*cJSON_CreateIntArray(const int*numbers,int count);
extern cJSON*cJSON_CreateFloatArray(const float*numbers,int count);
extern cJSON*cJSON_CreateDoubleArray(const double*numbers,int count);
extern cJSON*cJSON_CreateStringArray(const char**strings,int count);

/* Append item to the specified array/object. */
extern void cJSON_AddItemToArray(cJSON*array,cJSON*item);
extern void cJSON_AddItemToObject(cJSON*object,const char*string,cJSON*item);
extern void cJSON_AddItemToObjectCS(cJSON*object,const char*string,cJSON*item);/* Use this when string is definitely const (i.e. a literal, or as good as), and will definitely survive the cJSON object */
/* Append reference to item to the specified array/object. Use this when you want to add an existing cJSON to a new cJSON, but don't want to corrupt your existing cJSON. */
extern void cJSON_AddItemReferenceToArray(cJSON*array,cJSON*item);
extern void cJSON_AddItemReferenceToObject(cJSON*object,const char*string,cJSON*item);

/* Remove/Detatch items from Arrays/Objects. */
extern cJSON*cJSON_DetachItemFromArray(cJSON*array,int which);
extern void cJSON_DeleteItemFromArray(cJSON*array,int which);
extern cJSON*cJSON_DetachItemFromObject(cJSON*object,const char*string);
extern void cJSON_DeleteItemFromObject(cJSON*object,const char*string);

/* Update array items. */
extern void cJSON_InsertItemInArray(cJSON*array,int which,cJSON*newitem);/* Shifts pre-existing items to the right. */
extern void cJSON_ReplaceItemInArray(cJSON*array,int which,cJSON*newitem);
extern void cJSON_ReplaceItemInObject(cJSON*object,const char*string,cJSON*newitem);

/* Duplicate a cJSON item */
extern cJSON*cJSON_Duplicate(cJSON*item,int recurse);
/* Duplicate will create a new, identical cJSON item to the one you pass, in new memory that will
need to be released. With recurse!=0, it will duplicate any children connected to the item.
The item->next and ->prev pointers are always zero on return from Duplicate. */

/* ParseWithOpts allows you to require (and check) that the JSON is null terminated, and to retrieve the pointer to the final byte parsed. */
extern cJSON*cJSON_ParseWithOpts(const char*value,const char**return_parse_end,int require_null_terminated);

extern void cJSON_Minify(char*json);

/* Macros for creating things quickly. */
#define cJSON_AddNullToObject(object,name)cJSON_AddItemToObject(object,name,cJSON_CreateNull())
#define cJSON_AddTrueToObject(object,name)cJSON_AddItemToObject(object,name,cJSON_CreateTrue())
#define cJSON_AddFalseToObject(object,name)cJSON_AddItemToObject(object,name,cJSON_CreateFalse())
#define cJSON_AddBoolToObject(object,name,b)cJSON_AddItemToObject(object,name,cJSON_CreateBool(b))
#define cJSON_AddNumberToObject(object,name,n)cJSON_AddItemToObject(object,name,cJSON_CreateNumber(n))
#define cJSON_AddStringToObject(object,name,s)cJSON_AddItemToObject(object,name,cJSON_CreateString(s))

/* When assigning an integer value, it needs to be propagated to valuedouble too. */
#define cJSON_SetIntValue(object,val)((object)?(object)->valueint = (object)->valuedouble = (val):(val))
#define cJSON_SetNumberValue(object,val)((object)?(object)->valueint = (object)->valuedouble = (val):(val))

#endif
